"15cm sFH13/1 (Sf) auf Geschutzwagen Lorraine Schlepper (f): Official number Sdkfz 135/1.
Original production of 40 was May-June 1942 and immediately shipped to North Africa. A further 54 were converted in late July but all appear to have been retained in France as 54 are listed as in service on the Western Front in January 1944. This was the total production. Armament was the 1913 sFH13 L/17 150mm Long Howitzer, it had a range of 9,300 yards and a normal ROF of 2rpm. The sFH13 version was the only LS(f) conversion to go to North Africa. Other than a handful of Gw II sIGs (and possibly a very small number of GW 38(t) H) these were the only SP Artillery to see service with Rommel in Libya & Egypt, and Tunisia in 1942-43."